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AP Environmental Science Food Flashcards

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6779597276UndernutritionNot consuming enough calories to be healthy.0
6779597277Malnourished(3 billion, 1/2 of population). Having a diet that lacks the correct balance of proteins, carbohydrates, vitamins and minerals; Regardless of calories,1
6779597278Food Security- Condition in which people have access to sufficient, safe and nutritious food that meets their dietary needs for an active and healthy life.2
6779597279Food InsecurityRefers to the condition in which people do not have adequate access to food.3
6779597280FamineCondition in which food insecurity is so extreme that large #'s of deaths occur in a given area over a relatively short period.4
6779597281Anemia- Iron deficiency; is the most widespread nutritional deficiency in the world. (Est. 3 billion); caused by lack of iron in food, also AIDS, malaria and parasite infestations5
6779597282OvernutritionThe ingestion of too many calories and improper foods, which causes a person to become overweight (Est. 1 billion).6
6779597283Meat2nd largest component of the human diet is usually defined as livestock and poultry.7
6779597284Industrial AgricultureSame as Agribusiness; is a form of modern farming that refers to the industrialized production of livestock, poultry, fish, and crops. Applies the techniques of the Industrial Revolution - Mechanization and standardization - to the production of food.8
6779597285AgribusinessSame as Industrial Agriculture; agriculture conducted on commercial principles, especially using advanced technology.9
6779597286Energy subsidyEnergy input per calorie of food produced. (5 calories of energy for food input, even if you get 1 calorie in return, the subsidy is still 5.) Small scale agriculture uses less energy.10
6779597287Green RevolutionA shift in agricultural practices in the 20th century that included new management techniques and mechanization as well as the triad of fertilization, irrigation and improved crop varieties. These changes increased food production drastically.11
6779597288Economics of scaleAverage costs of production fall as the output increases.12
6779597289WaterloggingWhen soil remains under water for prolonged periods and impairs root growth because roots can't get oxygen.13
6779597290SalinizationOccurs when the small amounts of salts in irrigation water become highly concentrated on the soil surface through evaporation. Can reach toxic levels and impede plant growth.14
6779597291Organic FertilizersComposed of organic matter from plants and animals, naturally occurring. Manure, etc. Agriculture removes organic matter and nutrients so fertilizer replaces the nutrient levels to help with crop growth.15
6779597292Synthetic FertilizersSame as inorganic fertilizer; Produced commercially. Nitrogen fertilizers are often made by combusting natural gas.16
6779597293Inorganic FertilizersSame as synthetic fertilizer; Composed of simple chemicals and minerals; good but can take a lot of energy to produce (like Nitrogen fertilizers)17
6779597294MonocroppingDominant agricultural practice in the U.S. Where large patches of land grow only one kind of crop. (like wheat and cotton); it has improved agricultural productivity but leads to soil degredation18
6779597295PesticidesSubstances, either natural or synthetic, that kill or control pests.19
6779597296InsecticidesPesticides that target species of insects and other invertebrates that eat crops.20
6779597297HerbicidesPesticides that target plant species that compete with crops.21
6779597298Broad-Spectrum pesticidesPesticides that kill many different pests.22
6779597299Selective PesticidesPesticides that target a narrow range of organisms.23
6779597300Persistent pesticidePesticides that remain in the environment for a long time; ex. DDT24
6779597301Non-perisistent pesticideBreakdown rapidly; ex. Roundup25
6779597302Pesticide resistanceThose individuals who survive the pesticide26
6779597303Pesticide TreadmillA positive feedback pesticide cycle; Pesticide Development -> Survivors/Immune -> more pesticides developed.27
6779597304Conventional AgricultureIndustrial agriculture that has been so successful in reducing labor inputs and has become very widespread.28
6779597305Shifting AgricultureClearing land and using it for only a few years until the soil is depleted of nutrients.29
6779597306DesertificationTransformation of arable, productive land to desert or non productive land due to climate change or destructive land use; unsustainable farming practices; happening most rapidly in Sahara, Africa, northern China30
6779597307Nomadic GrazingMove herds of animals to seasonally to productive grounds to feed.31
6779597308Sustainable AgricultureFulfills the need for food and fiber while enhancing the quality of soil, minimizing the use of nonrenewable resources and allowing economic viability for the farmer.32
6779597309Intercropping2 or more crop species are planted in the same field at the same time to promote a synergistic interaction between them. Ex. corn needing lots of nitrogen is planed with peas that produce nitrogen.33
6779597310Crop RotationMoving crops around to help keep nutrient levels high throughout the years; produces same effect as intercropping. Ex. peas planted leaving nitrogen, then corn planted which needs lots of nitrogen34
6779597311AgroforestryIntercropping trees with vegetables allows vegetation of different heights to act a windbreaks and catch soil.35
6779597312Contour PlowingPlowing and harvesting parallel to the topographic contours of the land helps prevent erosion by water.36
6779597313No-Till AgricultureAgricultural method in which farmers do not turn said between seasons; avoid soil degradation / erosion that comes with conventional agricultural techniques.37
6779597314Integrated Pest Management (IPM)An agricultural practice that uses a variety of techniques designed to minimize pesticide outputs; Ex. crop rotation + intercropping + pest resistant crops...38
6779597315Organic AgricultureProduction of crops without the use of synthetic pesticides or fertilizers.39
6779597316Concentrated Animal Feeding Operations (CAFO)A large indoor or outdoor structures designed for maximum output.40
6779597317FisheryCommercially harvestable population of fish within an ecological region.41
6779597318Fishery CollapseDecline of a fish population by at least 90%42
6779597319BycatchUnintentional Catches. Significantly reduced population of fish species such as sharks, sea turtles and endangered other organisms.43
6779597320Individual Transferable Quotas (ITQs)Fishery managers establish a total allowable catch and distribute quotas to individual fishers or companies; has been effective in New Zealand to control overfishing44
6779597321AquacultureFarmings of aquatic organisms like shellfish, fish or seaweed; ex. US catfish, trout, shrimp and salmon raised this way.45
6779597322Annual plantThese plants typically are planted in the spring and summer months, bloom for the season, and then die.46
6779597323Perennial plantPlant that continues to grow year after year after remaining dormant throughout the winter.47

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